Flour-sifter



UNITED STATES PATENT OFFICE.

W. C. MCGILL, OF CINCINNATI, OHIO.

FLOUR-SIFTER.

Speciiication forming part cf I ettrs Phi-tent No. 52,729,

To all lwhom 'it may concern.'

Be it known that I, WILLIAM C. McGILL, of Cincinnati, Hamilton county, Ohio, have invented a new and useful Flour-Sitter; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specification.

This invention relates to an arrangement of revolving conical sieve acting in conjunction with one or more stationary oblique wings or blades for the purpose oi' rapidly and effectually separating iine from coarse flour.

Figure 1 is a perspective view of a sifter embodying my invention, the 4lid being removed. Fg. 2 is an axial section of the sifter in the closed condition. Fig. 3 is a horizontal section through the line x fc of Fig. 2.

A is an outside shell of cylindrical or conical form elevated on three or more legs, B, andprovided with upper and lower hearings, D and E, for the shaft F of a sieve,`Gr, hav-- ing the form of an invertediconic frustum.

H H are stationary blades or wings set at an angle oblique to the radius, so that as the dated February 20, 1866.

sieve is rotated in direction of the arrows the said blades act to crowd or press the ilour toward the sieve and force the ner particles through the meshes thereof.

The upper end of the shaft consists Iof a square head, f, which enters and ts a correspending socket, z', at the center of a circular cover, I, from whose upper side projects a handle, J, by which the sieve is rotated.

I have selected for illustration aform which I have found to be eiective in actual use, but do not desire to restrict the invention to the precise arrangement herein described.

I claim herein as new and of my invention- The combination of the stationary case A, wings H,the revolvin cover I, and shaft F, substantially as and for the purpose specied.

In testimony of which invention I hereunto set my hand.

W.C. MCGILL.

Witnesses:

GrEo. H. KNIGHT, JAMES H. LAYMAN.

g conical sieve G, socket- 4 

